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Leigh

(10 products)

Leigh Dovetail Jigs for Precise, Repeatable Joinery

Leigh dovetail jigs are the benchmark for router-cut joinery in serious woodworking shops. Unlike fixed-pitch jigs that lock you into one dovetail spacing, Leigh jigs let you dial in the exact pin and tail spacing and angles you want — giving you the control of hand-cut joinery with the repeatability of a router jig. The flagship Leigh D4R Pro Dovetail Jig handles through-dovetails, half-blind dovetails, and box joints on stock up to 24 inches wide.

For router table users, the Leigh Router Table Dovetail Jig brings the same adjustable-pitch system to a router table setup. It pairs naturally with the RTJ400 and 11 Pc Accessory Kit Package for a complete out-of-the-box solution.

Vacuum & Dust Control for Cleaner Cuts

Chip clearance is critical when routing dovetails — sawdust in the template fingers affects accuracy and can cause bit deflection. The Leigh D24 Vacuum and Router Support attaches directly to the jig to pull chips away at the source. Several D4R Pro packages include the D24 support along with paired router bit sets so you can start cutting immediately.

Leigh accessories — including the 11 Pc RTJ400 Accessory Router Bit Bushing Kit — expand jig capability and ensure your guide bushings and bits are perfectly matched. Browse our full selection below and visit the Infinity Tools learning center for dovetail technique guides.

Frequently Asked Questions

What is the Leigh D4R Pro Dovetail Jig used for?

The Leigh D4R Pro is a variable-spacing router dovetail jig used for cutting through-dovetails, half-blind dovetails, and box joints. It accommodates stock up to 24 inches wide and allows full control over pin and tail spacing and angle.

What is the difference between through-dovetails and half-blind dovetails?

Through-dovetails are visible from both sides of the joint, making them a decorative feature in boxes and carcase construction. Half-blind dovetails conceal the joint from the front face, which is why they're standard for drawer fronts where you don't want the joinery visible.

Can the Leigh jig cut variable-spacing dovetails?

Yes — unlike fixed-pitch dovetail jigs, Leigh jigs use individually adjustable fingers that let you set the pin and tail spacing anywhere within the jig's range, giving you the ability to mimic hand-cut proportions.

What router bits do I need for a Leigh dovetail jig?

Leigh jigs require matched dovetail and straight bits used with specific guide bushing diameters. The 11 Pc RTJ400 Accessory Router Bit Bushing Kit provides compatible bits and bushings for the RTJ400 system.

What is the Leigh D24 Vacuum and Router Support?

The Leigh D24 is an accessory that mounts to Leigh D-series jigs to provide router support and connect vacuum dust collection directly at the template fingers, improving chip clearance and cut accuracy.

Is a Leigh dovetail jig suitable for beginners?

Leigh jigs have a learning curve due to their adjustability, but they include detailed setup guides and the variable spacing capability makes them more versatile than entry-level fixed-pitch jigs. Beginners often find them rewarding once the initial setup is understood.

Does Infinity Tools carry complete Leigh jig packages?

Yes — several combination packages are available, including the D4R Pro with D24 Vacuum Support and bundles that include Infinity Tools router bit sets, so you have everything needed to start cutting dovetails immediately.

What types of joints can the Leigh RTJ400 cut on a router table?

The Leigh Router Table Dovetail Jig is designed for router table use and cuts through-dovetails and box joints, offering the same adjustable-pitch approach as the benchtop D-series jigs.

Does Infinity Tools offer price matching on Leigh products?

Yes. Infinity Tools has a price-match policy — check that page for eligible products and how to submit a match request.

Where can I find dovetail jig setup and technique guides?

The Infinity Tools learning center includes woodworking technique articles covering router joinery, dovetail setup, and bit selection to help you get the most from a Leigh jig.